|Table of Contents|

Genetic Diversity of SSR Analysis of Pear Cultivars Based on Maturity(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年16
Page:
43-49
Research Field:
Publishing date:

Info

Title:
Genetic Diversity of SSR Analysis of Pear Cultivars Based on Maturity
Author(s):
ZHAO Sisi; LIU Xingju; LI Xueyan; WANG Xiaoye; LIANG Haiyong; LIU Ming
College of Forestry，Agricultural University of Hebei/Key Lab of Genetic Resources of Forest and Forest Protection of Hebei Province，Baoding，Hebei 071000
Keywords:
Pyrus L.; simple sequences repeat(SSR); capillary electrophoresis; maturity; genetic diversity
PACS:
-
DOI:
10.11937/bfyy.20170631
Abstract:
Sixty-three main varieties of Pyrus L.were used as experimental materials.The method of combination with SSR molecular marker technique and capillary electrophoresis technique was used to study the genetic diversity of Pyrus L.varieties in order to supply reference for breed identification，parent-child relationship identification，classification and systematic research，genetic map construction and marker-assisted breeding of Pyrus L.The results showed that，the average number of alleles (Na) was 7.363 1，the Shannon diversity index (I) was 2.195，the expected heterozygosity (Nei) average of 0.845，indicating that the total genetic variation of the pear population was high.According to the pear system，it was divided into five groups：white pear，autumn pear，Japanese pear，Chinese pear and European pear.The white pear system was the highest in Shannon diversity index and expected heterozygosity，which were 2.069 9 and 0.831 1,respectively.The lowest were respectively 0.420 8 and 0.303 6，white pear and sand pear group genetic consistency of the highest，was 0.715 2.

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Last Update: 2017-08-29